Addition and Subtraction of Decimals

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Ages 11-12



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addition and subtraction of decimals

Description


By the end of this unit, students will:

  1. Understand the concept of decimals and their relationship to whole numbers.
  2. Add and subtract decimals accurately and efficiently.
  3. Apply the concept of adding and subtracting decimals to solve real-life and mathematical problems.

Key Stage 3: Number

Use the 4 operations, including formal written methods, applied to integers, decimals, proper and improper fractions, and mixed numbers, all both positive and negative


  • Age: 11-14

  • England & Wales: Year 7-9

  • Scotland: S1-S3

  • Rep. Ireland: 6th Class-2nd Year

  • Australia: Grade 6-8

  • USA: Grade 6-8

  • Three-part Lesson

  • Self-marking Activities

  • Fluency, Reasoning and Problem-solving Questions.

  • Engaging Drag and Drop Activities

  • Interactive Self-marking Worksheet

  • Printable Worksheets to Consolidate Learning

By the end of this unit, students will:

  1. Understand the concept of decimals and their relationship to whole numbers.
  2. Add and subtract decimals accurately and efficiently.
  3. Apply the concept of adding and subtracting decimals to solve real-life and mathematical problems.

Key Stage 3: Number

Use the 4 operations, including formal written methods, applied to integers, decimals, proper and improper fractions, and mixed numbers, all both positive and negative


  • Age: 11-14

  • England & Wales: Year 7-9

  • Scotland: S1-S3

  • Rep. Ireland: 6th Class-2nd Year

  • Australia: Grade 6-8

  • USA: Grade 6-8

  • Three-part Lesson

  • Self-marking Activities

  • Fluency, Reasoning and Problem-solving Questions.

  • Engaging Drag and Drop Activities

  • Interactive Self-marking Worksheet

  • Printable Worksheets to Consolidate Learning

Connected Resources

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Year 1 Maths

Ages 11-12

Ignite your child’s passion for mathematics with our Year 1 maths program through engaging activities and interactive learning.

By the end of this unit, students will:

  1. Understand the concept of decimals and their relationship to whole numbers.
  2. Add and subtract decimals accurately and efficiently.
  3. Apply the concept of adding and subtracting decimals to solve real-life and mathematical problems.

Key Stage 3: Number

Use the 4 operations, including formal written methods, applied to integers, decimals, proper and improper fractions, and mixed numbers, all both positive and negative

Connected Resources

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Year GroupYear 8 Maths
Resource Type📁 Digital Resource
FormatPrint & Digital
CurriculumEngland & Wales (KS1/KS2), adaptable internationally
Added4 March 2026

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